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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vsgiu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Сибирского государственного индустриального университета</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of the Siberian State Industrial University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2304 - 4497</issn><issn pub-type="epub">2307-1710</issn><publisher><publisher-name>Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.57070/2304-4497-2022-4(42)-11-18</article-id><article-id custom-type="elpub" pub-id-type="custom">vsgiu-169</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Раздел 1. Физика конденсированного состояния</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Section 1. Condensed Matter Physics</subject></subj-group></article-categories><title-group><article-title>ВЫЯВЛЕНИЕ СТРУКТУРНЫХ ИЗМЕНЕНИЙ В ОЦК КРИСТАЛЛЕ ПРИ ЛАЗЕРНОМ ВОЗДЕЙСТВИИ МЕТОДОМ МОЛЕКУЛЯРНОЙ ДИНАМИКИ</article-title><trans-title-group xml:lang="en"><trans-title>DETECTION OF STRUCTURAL CHANGES IN A BCC CRYSTAL-LE DYNAMICS UNDER LASER INFLUENCE BY THE METHOD OF MOLECULAR</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7328-5444</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гостевская</surname><given-names>Анастасия Николаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Gostevskaya</surname><given-names>Anastasia</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры естественнонаучных дисциплин им. профессора В.М. Финкеля, научный сотрудник лаборатории электронной микроскопии и обработки изображения</p></bio><bio xml:lang="en"><p>postgraduate student of the Department of Natural Sciences named after. professor V.M. Finkelya, Researcher</p></bio><email xlink:type="simple">gostevskaya_an@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4566-528X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маркидонов</surname><given-names>Артем Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Markidonov</surname><given-names>Artem</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.ф.-м.н., до-цент, заведующий кафедрой информатики и вычислительной техники им. В.К. Буторина</p></bio><bio xml:lang="en"><p> Dr. Sci. (Phys.-math.), Associate Professor, Head of the Department of IVT im. Butorina</p></bio><email xlink:type="simple">markidonov_artem@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный индустриальный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Laboratory of Electron Microscopy and Image Processing, Siberian State Industrial University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Сибирский государственный индустриальный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Industrial University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>04</day><month>06</month><year>2025</year></pub-date><volume>0</volume><issue>4</issue><fpage>11</fpage><lpage>18</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гостевская А.Н., Маркидонов А.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Гостевская А.Н., Маркидонов А.В.</copyright-holder><copyright-holder xml:lang="en">Gostevskaya A., Markidonov A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestnik.sibsiu.ru/jour/article/view/169">https://vestnik.sibsiu.ru/jour/article/view/169</self-uri><abstract><p>В представленной работе излагаются результаты молекулярно-динамического моделирования изменения поверхностного слоя расчетной ячейки при кратковременном высокоэнергетическом воздействии. Интерес к данной теме обусловлен тем, что процессы, протекающие в пребывающем в жидком состоянии поверхностном слое в последующем окажут свое влияние при его кристаллизации, и, как следствие, скажутся на различных физических и геометрических характеристиках поверхности материала в целом. Построенная и описанная в работе модель, температура расчетной ячейки в которой распределяется в соответствии с решением линейной задачи теплопроводности, позволила выявить нарушение сплошности поверхностного слоя, заключающееся в локализации избыточного свободного объема в виде группы сферических пор. Размеры этих несовершенств, а также длительность их существования имеют отличия при моделировании при разной плотности энергии лазерного излучения. Дальнейшее исследование позволило выявить условия, при которых поры остаются стабильными на протяжении всего времени моделирования, а также выявить связь между кристаллографической ориентацией межфазной границы твердое тело – жидкость и размерами образуемых пор.</p></abstract><trans-abstract xml:lang="en"><p>The presented work presents the results of molecular dynamics modeling of changes in the surface layer of the computational cell under a short-term high-energy impact. Interest in this topic is because the processes occurring in the surface layer, which is in a liquid state, will subsequently have an impact during its crystallization, and, as a result, will affect various physical and geometric characteristics of the surface of the material as a whole. The model constructed and described in the work, in which the temperature of the computational cell is distributed in accordance with the solution of the linear problem of heat conduction, made it possible to reveal the discontinuity of the surface layer, which consists in the localization of excess free volume in the form of a group of spherical pores. The sizes of these imperfections, as well as the duration of their existence, have differences when modeling different energy densities of laser radiation. Further research made it possible to reveal the conditions under which the pores remain stable throughout the entire simulation time, as well as to reveal the relationship between the crystallographic orientation of the “solid-liquid” interface and the sizes of the formed pores.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кристалл</kwd><kwd>модель</kwd><kwd>температура</kwd><kwd>плавление</kwd><kwd>пора</kwd><kwd>поверхность</kwd><kwd>межфазная граница</kwd></kwd-group><kwd-group xml:lang="en"><kwd>crystal</kwd><kwd>model</kwd><kwd>temperature</kwd><kwd>melting</kwd><kwd>pore</kwd><kwd>surface</kwd><kwd>interface</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">работа выполнена в рамках государственного задания 0809-2021-0013.</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of the state task 0809-2021-0013.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Markidonov A.V., Starostenkov M.D., Gostevskaya A.N., et al. 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